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Add Store::buildPathsWithResults()

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This function is like buildPaths(), except that it returns a vector of
BuildResults containing the exact statuses and output paths of each
derivation / substitution. This is convenient for functions like
Installable::build(), because they then don't need to do another
series of calls to get the outputs of CA derivations. It's also a
precondition to impure derivations, where we *can't* query the output
of those derivations since they're not stored in the Nix database.

Note that PathSubstitutionGoal can now also return a BuildStatus.
This commit is contained in:
Eelco Dolstra 2022-03-08 19:50:46 +01:00
parent 92b8d4d886
commit a4604f1928
16 changed files with 411 additions and 186 deletions
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4
src/libstore/build/drv-output-substitution-goal.cc
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@ -32,7 +32,7 @@ void DrvOutputSubstitutionGoal::init()
void DrvOutputSubstitutionGoal::tryNext()
{
trace("Trying next substituter");
trace("trying next substituter");
if (subs.size() == 0) {
/* None left. Terminate this goal and let someone else deal
@ -119,7 +119,7 @@ void DrvOutputSubstitutionGoal::realisationFetched()
void DrvOutputSubstitutionGoal::outPathValid()
{
assert(outputInfo);
trace("Output path substituted");
trace("output path substituted");
if (nrFailed > 0) {
debug("The output path of the derivation output '%s' could not be substituted", id.to_string());